Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2002-06-10
Nucl.Phys. B648 (2003) 189-202
Physics
High Energy Physics
High Energy Physics - Theory
17 pages, 1 eps figure, The version accepted for publication in Nucl. Phys. B
Scientific paper
10.1016/S0550-3213(02)00997-5
The effective string action of the color-electric flux tube in the U(1) x U(1) dual Ginzburg-Landau (DGL) theory is studied by performing a path-integral analysis by taking into accountthe finite thickness of the flux tube. The DGL theory, corresponding to the low-energy effective theory of Abelian-projected SU(3) gluodynamics, can be expressed as s [U(1)]^{3} dual Abelian Higgs (DAH) model with a certain constraint in the Weyl symmetric formulation. This formulation allows us to adopt quite similar path-integral techniques as in the U(1) DAH model, and therefore, the resulting effective string action in the U(1) x U(1) DGL theory has also quite a similar structure except the number of color degrees of freedom. A modified Yukawa interaction appears as a boundary contribution, which is completely due to the finite thickness of the flux tube, and is reduced into the ordinary Yukawa interaction in the deep type-II (London) Limit.
Ebert Dietmar
Koma Miho
Koma Yoshiaki
Toki Hiroshi
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